Adjustable spool for music-rolls



C. E. WHITE.

ADJUSTABLE SPOOL FOR MUSIC ROLLS.

APPLlAIloN r|LEp1uNE7,-191s.

1,333,953. Y Patented Mar.16.192o.

iUNITED STATES PATENT ouin-OE..

CLINTON E. WHITE, OF NEWARK, NEW JERSEY.

ADJUSTABLE SPOOL FOR MUSIC-ROLLS.

To all whom it may concern Be it known that I, CLINTON Evans WHITE, acitizen of the United States, and resident of Newark, in the county ofEssex and State of New Jersey, have invented certain new and usefulImprovements in Adjustable Spools for Music-Rolls, 4oi which thefollowing is a specification.

Music-rolls such as are used for self-playing musical instruments, andparticularly for pneu1naticallyoperated pianos and the like, arecustomarily wound on a core or spool. The width of these rolls or sheetsis not always exactly the same, and for this reason, and also forgreater convenience in re-rolling, as set forth hereinafter, it isdesirable to provide means whereby the length of the roll or spool maybe adjusted within certain limits. Wlhile various construct-ions forthis purpose have been devised and patented, I have sought'to furtherimprove constructions of this character, and the new constructiondisclosed in my present application Oilers especial advantages as tosimplicity, low cost of manufacture, and satisfactory operation.

Without desiring to restrict myself to the exact details represented, IVhave illus.

trated in the accompanying drawings a typical and preferred form ofrnypresent invention. Figure 1 is a longitudinal section of myimprovedmusic-roll spool, showing the same adjusted to its maximumlength, F ig. 2- isa cross section on line 2 2 of Fig'.` 1; Fig. Sis aface view of the connector or anchor' employed in thisl Vinvention; Fig.4 is an edge view of said connec- 'tor oranchor; and Fig. 5 isa partiallongitudinal section showing the right-hand portion of Fig. l adjusted.to the`posi tionyof minimum spool length'. l

lThe body .A of the spool may be made as a cylindrical tube ofspirally-wound cardboard, or in any other suitable' manner to form asupport for the music-sheet, thel latter being generally of thewell-known per-` forated character'for the control of pneumatic action.At yone end of this body or Vsupport A I provide a head B, having thecustomary diametrieal slot B which serves to connect the spool with themechanism (not shown) used for supporting and winding or rotating thespool. Said head B in particular instance is shown as made withvaprojecti'on C `extending axially linto Specification of LettersPatent. Patented Bleu. 16, 1920.

Application filed June 7, 1919. A

Serial No. 302,537.

the bodyA. This head B is usually made ot hard rubber or similarcomposition or material, the head B being suitably connectcd with thebody A, so that the head B will be stationary with vreterence to theVbody or core A. lVetting the projection C with al.- tohol will make itsticky so that it will adhere to the inside of the body A.

At the other end of the spool, I have shown an adjustable head D,preferably made of hard rubber or other suitable inaterial orcomposition and formed with the cylindrical or slightly conical socketDcus tomarily provided for the reception of the pin or like part of themechanism for supporting this end of the spool.l The headl D, like thevhead B, C, has a flange for engaging the edge of the music-sheet orroll, and is vformed with an axialv projection D extending, with asliding iit, into the adjacent end of the hollow or tubular body A. Acylindrical wooden plug E may form an inward extension of the'projectionD, said plug having the same diameter as the projection, and thereforeslidingcontact with the inner wall of the tubular body A; the plug E isrigidly connectedv to the projectionD, as by molding the projectionaround it, see Figs'. l and .5. The plug is shown as having a Vreducedand dovetailed end- E extending into the projec`- tion D, the latterthusl having a recess or socketv at its innerl end, as shown, tovreceive the eorrespondin'gly-tormed outer' end of the plug or extensionE, so as to obtain a better connection between these parts.

The plug or extension E of the head vD is provided at its inner end withan axial bore into which -its the longitudinal pin vor l screw F, havinga head' F atits free l,or inner end. It will be understood that theextension or plug E, being secured to the head D rigidly, practicallyformsipart thereof, in fact, the parts D, E might hemade integral. witheach other, but I prefer the two-piece construction shown ltor thereason that the exposed portion D, whichengages the note-sheet.performsV its function better when made of hard rubber or similarmaterial, and is more readily produced in quantities from such materialthan if made of wood,whereas wood is preferred, for the eX- tension E onaccount of its affording a better hold for the pin or screw F. The pin Fis normally stationary relatively to the' head p following construction:The piu or screw Il" extends loosely through a connector or anchor G,that is to say., said part@Y has an opening of sufficient diameter toallow the part G to slide freely lengthwise of the pin F as long as the`parts D, E, F, are separate from the body A. Of course, the head F islarger than the opening in the anchor G, so as to form a stop. Havingadjusted the head F to the proper distance from the head D, E, theworlnnan assembling the roll or spool will introduce the connector oranchor Gr and the parts D, E of the head into the hollow body A until.the position. Fig. 5 is reached. lt willv be 'observed that theconnector or anchor Cr is of a length slightly .greater than tuediameter of the interior of the tube or body but this member Gr. is madeof steel or other elastic material so that it will bend slightly as thehead D,E, is pushed in, and moreover, the free ends ofthe member G,which is in the nature of a narrow plate or strip, sce Fig. 3, are bentslightly toward the head D. E., even in their original condition, Fig.lt is thus easy to place the anchor or connector Gr within the hollowsupport or Vbody A, by pushing the head D, E into the position shown inFig. lt will be seen that in this position the head F is spaced from theconnectorG, so that, with this connector remaining stationary withreference to the body A, the head D, E, F capable of a limitedlongitudinal movement or adjustment within the limits indicated by Figs.l and 5. When the position Fig. l is attained, a further pull on thehead D will have no effect beyond placing a strain on the connector G.lThe outer ends G of this connector will. then simply be driven moredeeply into the material of the tube or body A, and this result may beenhanced by givingthese ends the shape'of V-points, see Figs. 2 and 4t,and preferably, the edges of these J-points are sharpened onV the sidetoward the head D, E, so that these edges willmore readily cut into, andvbecome an'- chored in, the inner wall of the tube or body A. Thus itwill be understood that the connector or anchor G., when once brought tothe position Fig. vissecured to the tube or supporting body Airinly andpermanently. The longitudinal play of thehead D, E, F allows it to beadjusted to accommodate illusie-rolls or sheets of different widths(within certain limits). Thisy longitudinal play is also Yof advantagein i'e-rolli11g,wl1en by bringing the adjustable head inward until itsHangs touches the edge ofthe note sheet, the sheet rolled or ycoiled onthe core or body i will thus be adjusted or straight cned so that itwill run perfectly true.

lllhile l have shown the interior of the core A as a chamber of circularcross section (Fig. 2), the projection D and the plug or extension Ehaving cylindrical outer surfaces to engage the cylindrical inner wallof said chamber, it will be obvious that the cross section might be ofdifferent shape, as long as it is uniform throughout the length of theengaging surfaces, so that they may properly slide one on the other.Furthermore, while Fig. l shows an adjustable head at one end only ofthe core, and a'stationary head at the other, I might, if preferred,provide at each end of the core an adjustable head of the characterrepresented at the right of Fig. l, but I consider it more satisfactoryto have one head stationary and the other adjustable. 'The modiloa-Vtions above referred to, and others, nay made. without departing fromthe nature of my invention as set forth in the appended claims. Y

l claim as my invention:

l.. A music-roll spool comprising an elon gated body or core with headsat each end, one end of said core being hollow, and the head which isadj cent .to said end being formed with a projection extending inwardlyfrom theiiange of the head vinto said hollow end of the core, the outersurface of said projection and the inner snrface of the core end beingin longitudinal sliding engagement with each other and of uniform crosssection throughout their operative length, a pin carried by said headand projecting therefrom longitudinally within the said hollow core end,and provided with a head, and an anchor secured within the hollow coreend between the head of said pin and the body of the sliding head, saidanchor having an opening large enough for the sliding passage of saidpin, but small enough to arrest the passage of said pin head. f y

9J. i music-roll spool comprising an elongated core with flanged headsVat each end, one endof said core being hollow, and the head which isadjacent'to said end being formed with a projection extending inwardlyfrom the flange of said Ihead'into said hollow end of the core, theouter surface of said'projection andthey inner surface of the core endbeing in longitudinal sliding engagement with each other and of uniform'cross section throughout their operative length, a screw fitted into theinner end Vof said projection and extending lengthwise within saidhollow core end, to share. in the longitudinal movement of said head,said screw being provided with an enlargement or head at its innererfree end, and Van anchor secured to the core within the hollow lli endthereof, between the enlargement of said screw and said projection ofthe adjustable flanged head, said anchor having an opening large enoughfor the sliding passage of said screw, but small enough to arrest thepassage of the screw head.

3. A music-roll spool comprising an elongated core with flanged heads ateach end, one end of said core being hollow, and the head which isadjacent to said e-nd being formed with a projection extending inwardlyinto said hollow end ot' the core, and in longitudinal slidingengagement with the inner wall of said end, an anchor secured. to saidcore within said hollow end, and a member carried by said head andadjustable relatively thereto longitudinally, said member sharing thelongitudinal movement of the head and extending lengthwise of the corethrough the said anchor, and provided, on the side of the anchoropposite t0 said head, with an enlargement adapted to engage said anchorwhen the head is moved outward and to thus stop the ontward movement oi:the head.

4. A music-roll spool comprising an elongated core with heads at eachend, one end of said core being hollow, and the head which is adjacentto said end being formed with a projection extending into said hollowend of the core, and in longitudinal sliding engagement therewith, ananchor extending transversely within the'hollow end of the core andhaving its ends bent toward the outer end of the core cavity and inlocking engagement with the inner wall of said cavity, and amotion-limiting member connected with said sliding head and extendinglengthwise of the core in said cavity and through said anchor, andprovided with means to engage said anchor and limit the outward movementof the said head.

5. A music-roll spool comprising an elongated core having a hollow end,an adjustable head located adjacent to said end and formed with aprojection extending into said end and in longitudinal slidingengagement therewith, an anchor extending transversely within the hollowcore end and having its ends pointed in V-shape and in lockingengagement with the inner wall ot the core cavity, and a motion-limitingmember connected with the adjustable head and eX- tending lengthwise ofthe core in said cavity and through said anchor, and provided with meansto engage said anchor and limit the outward movement of said head.

6. A music-roll spool comprising an elongated core having a` hollow end,an adjust--` specification.

CLINTON E. WHITE.

